Re: [PATCH 3/4] mm, rmap: minimize lock hold when unlink_anon_vmas

From: Joonsoo Kim
Date: Wed Aug 07 2013 - 03:18:37 EST

On Wed, Aug 07, 2013 at 02:11:38AM -0400, Johannes Weiner wrote:
> On Tue, Aug 06, 2013 at 05:43:39PM +0900, Joonsoo Kim wrote:
> > Currently, we free the avc objects with holding a lock. To minimize
> > lock hold time, we just move the avc objects to another list
> > with holding a lock. Then, iterate them and free objects without holding
> > a lock. This makes lock hold time minimized.
> >
> > Signed-off-by: Joonsoo Kim <>
> I expect kfree() to be fast enough that we don't think we need to
> bother batching this outside the lock.



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